242236155820 has 12 divisors (see below), whose sum is σ = 508695927264. Its totient is φ = 96894462320.

The previous prime is 242236155817. The next prime is 242236155827. The reversal of 242236155820 is 28551632242.

It is a happy number.

242236155820 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (242236155827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6055903876 + ... + 6055903915.

It is an arithmetic number, because the mean of its divisors is an integer number (42391327272).

Almost surely, 2^242236155820 is an apocalyptic number.

242236155820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242236155820 is an abundant number, since it is smaller than the sum of its proper divisors (266459771444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242236155820 is a wasteful number, since it uses less digits than its factorization.

242236155820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12111807800 (or 12111807798 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 242236155820 in words is "two hundred forty-two billion, two hundred thirty-six million, one hundred fifty-five thousand, eight hundred twenty".